A skydiver weighing 600 N spreads her arms. The force of air resistance builds to 200 N. What is the mass of the skydiver? Put your answer in as a whole number without a unit.

sorry, i dunno the answer im just trying to level up and get points just like in a game.

layers of the earth affect the waves and these effects are seen on instruiments such as seimometers

the earths atmosphere is made up of nitrogen and oxygen. solids can turn into gasses through a process called sublimation. sublimation is the transition of a substance directly from the solid to the gas phase, without passing through the intermediate liquid phase.

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